Mou,

I use Smart Auto Blogger to post RSS feeds to blogs. It is a buggy server side script that works for some but not others. But once you understand it's limits and work with in them, it's a great program.

There are other server scripts as well as desktop applications. Each one has a distinctive advantage and disadvantage - which may be opposite for two different people.

They all have unique posting footprints. That's the win-win part about having different members with different tools posting to the same blogs. It dedupes the blog from looking like a mass-generated splog.